So I went in to get the routine service done yesterday and during the inspection they indicated that my water pump was bad!!

We had a thread a while back that had some folks discussing of a oily/burning plastic smell after driving. But could not pinpoint the source.

Mine had that smell since day one... But after taking to the dealer several times and asking them to check during routine service --finding nothing wrong -- and reading posts about it, I assumed it was normal...

Well it's not! at least in my case...

ironically this time I only went in w/ one thing on my list to do -- 3 year service. And now they found this! Makes me wonder a little...

There was a TSB/service action issued because the impellers basically dissolved in the pre-2000 V8 requiring replacement with a different material. Do you mean they messed with the water pump again?

I didn't know about that part..But the recent ones up till mid-production year of the 2012 MY and backward on the 5.0L engines and they developed premature leaks..You can see white speckling on the Belt tensioner if the pump is starting to leak..as that is where the telltale signs are visible of it slinging leaking coolant...Along with the obvious smell of coolant.

I had mine replaced a few weeks ago under warranty. I remember smelling something funny a while ago while leaving the car running for a while but thought nothing of it. Then I got the coolant level low warning about a month ago and filled it up. Then a week and a half later the warning came again so I figured something was wrong. I have a 2010 XF with about 45K.

Next week, I'm putting the car in the shop to replace the water pump and about 6 coolant hoses. All of the hoses are leaking to some degree, some so bad that orange stalagmites have formed at the site of the leak.

"The water pump can display some dry coolant residue on the pump body, and surrounding area, during normal operation. A small amount of coolant may temporarily weep through the pump seals or from the evaporation chamber. This does not affect the operation of the pump or the cooling system, and it does not damage the water pump. A small amount of dry coolant residue on the pump body, pulleys, belts, or around the front of the engine are not alone sufficient justification for changing a water pump."

"The water pump can display some dry coolant residue on the pump body, and surrounding area, during normal operation. A small amount of coolant may temporarily weep through the pump seals or from the evaporation chamber. This does not affect the operation of the pump or the cooling system, and it does not damage the water pump. A small amount of dry coolant residue on the pump body, pulleys, belts, or around the front of the engine are not alone sufficient justification for changing a water pump."

Not anymore, that TSB was supposedly superseded by another one, from what I was told...But they were just 10 and 15 year service techs..what do they know..?

While if the car comes in for any service and they discover any coolant residue and smell around the water pump area..they immediately replace the water pump, period..

I think I remember them saying that Jaguar began seeing too many with excessive coolant losses and didn't want to have to replace any overheated engines...

But I'm not trying to argue...if you or anybody who has coolant residue and smell and you're content that it is nothing to worry about...well by all means, let it continue to leak, I sure as to hell wouldn't, but that's me and my **** cautious ways....but just be sure to keep an eye on your coolant level..

Heres the deal with tsb's. They include a vin range for vehicles that are "supposedly" affected. But we see issue outside of "vins ranges" all the time for differant things not just water pumps. Less likely sure. But that doesnt meen that a new variant or style part is never going to fail. When we find issues outside the vin range we fix the issue. But we just dont refferance the tsb since it "only pays" for those vins when you referance it and would be denied for warranty reimbusment when submitted.
The tsb refers to pressure testing and slacking the belt and checking for any play of the pulley. Replacing if wont hold pressure or if play. Yes a slighty staining can be normal. But i always monitor and look on every 5 litre i get for any reason when i open the hood. I ve never had a low coolant warning and tested car close to warranty expiration car go out the door with no fault noted. At that point ive found they all fail the test. The 5 litres do not like air pockets in the engine and improper coolant refill can and ive seen engine failure due to warped heads, blown head gaskets. I forsee alot of issue out of warranty when diyer's and inexperiance indie shops do repairs and dont get the air from the system or when people let coolant leaks go or get a low warningn overheating and respond by "well ill take it in next week or i just need to go alittle further to get home work etc...like i told my kids when teaching them about theirs cars. " a wrecker is always cheaper than a engine! Period" i see this foolishness every year.
Every thing has an achilles heel and that pretty much the only thing on the 5 litre. And no dont go off mamby pamby like chicken little swearing the sky is falling. There are tons of 5 litres that never need pumps, just dont be ambivilant if yours does